Critical Cloud Security Measures for 2024
As we approach 2024, it is important for organizations to take proactive steps to strengthen their cloud security posture. Here are some of the most critical cloud security measures I recommend implementing over the next year:
Migrate to More Secure Cloud Platforms
Move from public cloud to private cloud where possible
Migrating sensitive data and workloads from public clouds like AWS and Azure to private clouds or hybrid environments gives me more control over the security of my cloud infrastructure. Private clouds are hosted in my own data center, so I have greater visibility and control over the underlying hardware and network security controls.
Adopt SaaS applications with strong security
When evaluating SaaS applications like Office 365 and G Suite, I should strongly consider providers with robust security capabilities like encryption for data in transit and at rest, granular access controls, and advanced threat detection. Going with SaaS apps that prioritize security gives me assurance that my data is protected.
Strengthen Identity and Access Management
Enforce principle of least privilege
By only provisioning the minimum permissions each user needs to do their job (i.e. least privilege model), I can limit damage from compromised accounts or insider threats. Regularly reviewing access and cutting back excessive permissions is imperative.
Implement strong multi-factor authentication
Adding a second form of authentication like biometrics or one-time codes along with passwords significantly enhances account security against brute force and credential stuffing attacks. I should mandate MFA across all cloud environments.
Automate access revocation for employees
Having automated mechanisms to immediately revoke former employee access upon termination is crucial to prevent disgruntled insiders. Cloud IAM solutions that integrate with HR systems greatly simplify access revocation.
Enhance Visibility Across Cloud Environments
Aggregate logs in a SIEM
By funneling logs from all my cloud platforms and endpoints into a SIEM, I gain centralized visibility and can better detect threats, perform forensics, and comply with audits.
Monitor for suspicious internal activity
Cloud access, data movement, and admin activity logs provide vital internal threat intelligence. I must log and monitor closely for anomalies, impossible travel scenarios, and excessive permissions usage.
Regularly scan cloud resources
Continuously scanning infrastructure, networks, applications, and code for misconfigurations and vulnerabilities allows me to rapidly remediate security gaps before they can be exploited.
Control Data Access and Encryption
Classify data into sensitivity tiers
By classifying data by factors like confidentiality and business impact, I can tailor my security controls appropriately based on risk profiles. This allows me to focus protection where it matters most.
Implement data loss prevention controls
Using DLP tools, I can monitor and control the flow of sensitive data across cloud apps and stop high-risk transfers like PII exfiltration. Integrating DLP with data classification provides wider coverage.
Require encryption for sensitive data
Encrypting sensitive data end-to-end ensures that data remains secure even if hardened perimeters somehow fail. I must mandate strong encryption like AES-256 for sensitive data at rest and in transit across all cloud environments.
Prepare for Security Incidents
Have an IR plan for cloud environments
My incident response playbooks and procedures must account for collecting forensic artifacts from cloud platforms like access logs and system event logs. I should regularly test my ability to investigate and respond in cloud environments.
Enable automated response capabilities
By integrating tools like Security Orchestration Automation and Response (SOAR), I can achieve faster, more consistent incident response. Automated playbooks codify my incident handling procedures and allow me to scale.
Train for cloud-specific threats
As threats targeting cloud infrastructure evolve, it is critical for my security team to receive ongoing training on current cloud-specific attacks and harden their skills. This allows us to better defend against sophisticated multi-stage attacks.
While this covers important high-level measures, I must continue evaluating my cloud architectures, applications, and processes to identify and mitigate risks on an ongoing basis. Adapting my security program to the cloud will enable me to unlock innovation and agility without compromising on protection.
